annatoncheva11 annatoncheva11

04-05-2020
Mathematics

contestada

Can anyone help me on this task sin75°.cos75°=

Respuesta :

Chelboy Chelboy

04-05-2020

Answer:0.25

Step-by-step explanation:

Sin75.cos75

From trigonometric identity we know that: sin2x=2sinxcosx

sinxcosx=(sin2x) ➗ 2

Sin75cos75=(sin(2x75)) ➗ 2

Sin75cos75=(sin150) ➗ 2 but sin150=0.5

Sin75cos75=0.5 ➗ 2

sin75cos75=0.25

Answer Link

lucasella lucasella

04-05-2020

The answer is attached.

Ver imagen lucasella

Answer Link

Otras preguntas

Which source would be most likely to contain useful, current information about food allergies in children and teens

Distribute property to simplify -(x+2)

What does the denominator of a rational exponent represent

How many pizzas were shared

Global library of information available to anyone connected to the internet

Which colony was originally founded by the dutch, but later taken over by the english?

A user is trying to delete a file located on an ntfs volume on his windows 8 computer but is unable to do so. Why is this.

Measurements for entire populations are: • Very easy to calculate • Always done with big computers • For the most part, very impractical • The only way to obta

What is 3.3 rounded to the nearest whole

Q # 15 please help me to resolve